cc: Video layers without a frame should not occlude

content/renderer/media/webmediaplayer_ms.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/webmediaplayer_ms.h"
 
 #include <limits>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 446 matching lines @@
 }
 
 bool WebMediaPlayerMS::UpdateCurrentFrame(base::TimeTicks deadline_min,
                                           base::TimeTicks deadline_max) {
   // TODO(dalecurtis): This should make use of the deadline interval to ensure
   // the painted frame is correct for the given interval.
   NOTREACHED();
   return false;
 }
 
+bool WebMediaPlayerMS::HasCurrentFrame() {
+  base::AutoLock auto_lock(current_frame_lock_);
+  return current_frame_;
+}
+
 scoped_refptr<media::VideoFrame> WebMediaPlayerMS::GetCurrentFrame() {
   DVLOG(3) << "WebMediaPlayerMS::GetCurrentFrame";
   base::AutoLock auto_lock(current_frame_lock_);
   DCHECK(!pending_repaint_);
   if (!current_frame_.get())
     return NULL;
   pending_repaint_ = true;
   current_frame_used_ = true;
   return current_frame_;
 }
@@ skipping 77 matching lines @@
   GetClient()->readyStateChanged();
 }
 
 blink::WebMediaPlayerClient* WebMediaPlayerMS::GetClient() {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(client_);
   return client_;
 }
 
 }  // namespace content